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Chronological vs. Functional vs. Combination Resume Format

Three layouts, one decision: which sections lead, how a recruiter reads each one, and the exact margins, fonts, lengths and file types that survive screening.

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Use the reverse-chronological format unless you have a specific reason not to. It lists your jobs newest first, it is what recruiters and applicant tracking systems expect, and it needs no explanation. The combination format is the sensible second choice when you are changing field and your job titles do not show what you can do. The pure functional format — skills grouped at the top, dates buried or missing — is a last resort, because it reads as if something is being hidden.

This guide sets out what each format contains, which situation calls for which, and the exact formatting numbers to build it with.

The options at a glance

FormatBest forATS-safe?ProsCons
Reverse-chronologicalAnyone with a steady record in one field or a related one; internal moves; regulated trades where dates and licences matterYes — parsers are built around job title, employer, start date, end date in that orderFamiliar to every reader; makes progression obvious; nothing looks concealed; easiest to writePuts gaps and short stints in plain sight; a career change can look like a mismatch at first glance
Functional (skills-based)Rare cases: a long absence from paid work, a portfolio of short contracts with no through-line, a first resume with no employment history at allOften not — many parsers cannot attach a skill block to an employer or a date, so the work history field comes back thin or emptyLeads with capability rather than chronology; lets unpaid, academic or personal-project work carry weightRecruiters read it as evasion; loses the story of who paid you to do what, and when; harder to verify; some screeners discard it on sight
Combination (hybrid)Career changers, returners after a break, consultants and contractors, senior candidates whose recent title undersells the range of the workYes, if the skills block sits above a complete dated job listPuts transferable skills first while keeping the audit trail; flexible for mixed or non-linear careersRepeats content if written carelessly; eats space, so it pushes short careers onto a second page; needs editing discipline

Each option explained

The reverse-chronological resume opens with your name and contact details, a three- or four-line summary, then employment history with the most recent role first. Each entry carries job title, employer, location, and month and year for start and end, followed by three to six achievement bullets. Education, licences and certifications, and a short skills list come after. Use it when your next job is a recognisable step from your last one, when you work in a field that checks dates and registrations — nursing, aviation, construction, accountancy, teaching — and whenever you are applying through a large employer's system such as Workday, Taleo, SuccessFactors, iCIMS, Greenhouse or Lever. The whole format rests on the bullets, so make each one an action plus a task plus a number in the units of the job. Instead of "responsible for the stockroom", write "Cut stockroom shrinkage from 2.1% to 0.8% across two branches in nine months". Instead of "responsible for social media", write "Grew the brand's Instagram following from 4,000 to 19,000 in 14 months on a £600 monthly budget".

The functional resume replaces the dated job list with two to four themed skill blocks — for example "Client management", "Data analysis", "Site supervision" — each with bullets drawn from anywhere in your life: paid jobs, volunteering, study, freelance work, a family business. Employers appear at the bottom in a bare list, sometimes without dates. It exists for a narrow set of situations: a decade out of the workforce, a stretch of unrelated short-term jobs that tell no story, or a school leaver with coursework and volunteering but no employment. Be clear about the cost. A recruiter cannot see what you did most recently, cannot tell whether the impressive bullet is from last year or 2009, and will usually assume the worst about the gap you are steering around. Many parsers will also fail to populate the work history section, which means your application arrives looking empty. If you are considering it, build the combination format instead and address the gap in one straight line.

The combination resume keeps the dated employment history intact but puts a skills summary, a core competencies block or a "selected achievements" section above it. The top third argues that you can do the advertised job; the bottom two thirds proves you have been employed and by whom. Use it when your job titles obscure the work — a project coordinator who has been running budgets, a teacher moving into instructional design, an army logistics NCO moving into warehouse management — or when your recent role is a step sideways or down from earlier ones. The discipline is not to say the same thing twice: the skills block should name the capability and the headline evidence, and the job bullets should carry the detail. Cap the top block at six to eight lines. If it runs longer, it becomes a second resume sitting on top of the first.

How to choose

Your situationUse this formatWhy
Same field, steady employment, applying for the next step upReverse-chronologicalProgression does the argument for you; anything else adds friction
Applying through a large employer's careers portal or an agency databaseReverse-chronologicalParsers map title, employer and dates most reliably in this order
Changing industry with transferable skillsCombinationSkills block reframes the experience; dated history keeps you credible
Returning after a career break of a year or moreCombinationLeads with current capability, then shows the break honestly with a one-line explanation in the history
Freelancer or contractor with many short engagementsCombinationGroup engagements under one self-employment heading with dates, and lead with the skills thread that runs through them
Military, clergy, academic or public-sector background moving to the private sectorCombinationTranslates unfamiliar titles into civilian terms before the reader reaches them
Graduate or school leaver with placements, coursework and part-time workReverse-chronological, education firstEducation is your strongest section; list it above work for the first two or three years
Trades and licensed roles where tickets matterReverse-chronological with a licences block near the topScreeners check for the ticket before anything else
Internal application or promotionReverse-chronologicalThe reader already knows the employer; they want the trajectory
Ten years out of paid work, no recent referencesCombination, or functional only if the history is genuinely unusableKeep dates if you can; unpaid and caring work can be listed as roles with dates
Senior candidate with 20+ years of historyCombination, with detail on the last 10–15 yearsSummarise older roles in a two-line "Earlier career" list
Academic, research or clinical post asking for a CVNeither — use the CV conventions of that fieldPublications, grants, teaching and supervision have their own required order

Formatting specifications

ElementSpecificationNotes
Page sizeA4 (210 × 297 mm) in the UK, Europe, Australia, India; US Letter (8.5 × 11 in) in the US and CanadaSet it before you start; switching later reflows the layout
Margins1 inch (2.54 cm) all round as standard; never below 0.5 inch (1.27 cm)Tight margins are the first thing to sacrifice, and the first thing that makes a page look cramped
Body text size10.5–12 pt11 pt suits most sans-serif fonts; 10.5 pt is the floor for readability in print
Section headings12–14 pt, bold, optionally small capsKeep heading size consistent across all sections
Your name18–24 pt at the top of page 1Largest text on the page; nothing else competes with it
Safe fontsCalibri, Arial, Helvetica, Verdana, Lato, Source Sans, Cambria, Georgia, Garamond, Times New RomanUse one font throughout, or one for headings and one for body; embedded or downloaded fonts can substitute badly on someone else's machine
Line spacing1.0–1.15 within bullets; 6–10 pt space after each bulletAvoid 1.5 or double spacing — it wastes a third of the page
Space between sections10–14 pt before each headingConsistent gaps do more for readability than colour
Bullet length1–2 lines, roughly 15–30 words; 3–6 bullets per recent role, 2–3 for older rolesOne bullet that wraps to a fourth line will not be read
Length1 page for under 10 years of experience; 2 pages beyond that; 3+ pages only for academic CVs and some government or clinical applicationsTwo full pages beats one crushed page and 1.3 pages
ColumnsSingle column throughoutTwo-column layouts can be read out of order by parsers; if you use one, keep dates and job titles in the main column
DatesMonth and year, e.g. "Mar 2021 – Aug 2024", written the same way every timeYear-only dates invite questions about hidden gaps
Contact blockName, city and region, phone with country code, one professional email, one profile or portfolio URLFull street address is no longer expected in most countries; check local norms
Headers and footersKeep contact details, job titles and dates in the body, not in the header/footer areaSome parsers ignore header and footer content entirely
GraphicsNo photos, logos, icons, skill rating bars, charts or text boxes in an application going through a portalSave the designed version for direct email, networking and portfolio sites
File typePDF unless the advert or portal asks for .doc/.docxExport as PDF from Word or Google Docs; never send a scan or an image-only PDF
File nameFirstname-Lastname-Role.pdf, e.g. Amara-Okafor-Warehouse-Supervisor.pdfAvoid "resume-final-v7.pdf"; the file name is visible to the reader

ATS checklist

Run this before you upload. Fix anything that fails, then re-export.

  • Standard section headings. Use "Work Experience" or "Professional Experience", "Education", "Skills", "Certifications". Invented headings such as "Where I've Made a Dent" may not be recognised as a section at all.
  • Complete, dated job entries. Every role has a job title, an employer name, a location and month/year dates on consecutive lines. This is the single biggest reason a pure functional resume parses badly.
  • One column, no text boxes, no tables for layout. Type directly into the document body. Content inside a text box or a graphic frame can be skipped entirely.
  • Real text, not an image. Open your exported PDF and try to select a line of text with the cursor. If nothing highlights, the file is an image and no system can read it.
  • Keywords in the words the advert uses. If the posting says "accounts payable", "Xero" and "CIPS Level 4", use those exact terms where they are true of you, in the job bullets and the skills list. Spell out an acronym once and then abbreviate: "Certified Public Accountant (CPA)".
  • Simple bullet characters. Round or square bullets from the word processor's list tool. Avoid arrows, emoji, check marks and manual dashes typed at the start of a line.
  • Contact details in the body of page 1. Name, phone, email and city sit in the first few lines of the document, not in the header area or a sidebar.
  • Plain file, plain name. Export to PDF unless another format is requested, keep the file under about 2 MB, and name it with your name and the role.

Frequently asked questions

Should my resume be one page or two?

One page if you have less than about 10 years of relevant experience, two pages beyond that. The rule that everyone must fit on one page comes from a US graduate-recruitment convention and does not travel well — a senior engineer or a nurse with four registrations cannot fit on one page without cutting things a reader needs. What matters more is that the page is full. A second page with three bullets on it looks unfinished; either expand it to at least half a page or cut back to one. If you do run to two pages, put your name and "Page 2" at the top of the second sheet in the body text, and make sure the strongest material is above the fold on page 1, because that is what gets read first.

Are Word, Google Docs or Canva templates safe to use?

The plain single-column templates built into Word and Google Docs are generally fine. Design templates — the ones with a coloured sidebar, a photo circle, skill rating bars and icons — are the ones that cause trouble, because the content usually sits in text boxes or table cells that a parser can mis-order or skip. Canva and similar tools are excellent for a portfolio piece or a resume you hand over in person, and risky for a portal upload. A practical test: export the file to PDF, open it, select all the text, paste it into a blank document and read the result in order. If the job titles have separated from the dates, or the sidebar text has landed in the middle of a bullet, rebuild it as a single column.

Should I include a photo, date of birth or marital status?

It depends entirely on where you are applying, and norms differ sharply. In the UK, Ireland, the US, Canada and Australia, photos and personal details such as age, marital status and nationality are conventionally left off, and many employers strip them to support fair hiring. In parts of continental Europe, Latin America, the Middle East and Asia, a photo and some personal details are still expected on a standard CV. Look at how job adverts in that country describe what to send, and at what people in the same field and country put on their public profiles. When you are unsure, leave them off — nobody has ever been rejected for omitting a photo in a market where photos are optional.

PDF or Word — which should I send?

PDF unless the advert, the portal or the recruiter asks for .doc or .docx. PDF preserves your fonts, spacing and page breaks on any machine, and a text-based PDF exported from Word or Google Docs is read reliably by modern parsers. Send Word when an agency asks, because agencies often add their own cover sheet and branding before passing your resume to the client. Never send a .pages file, a scan, a photo of a printout, or a link to a document that requires the reader to request access. Check the upload screen for a stated file type and size limit and follow it exactly.

Will a functional resume be rejected automatically?

There is no switch that deletes functional resumes, and you should be suspicious of anyone quoting a rejection rate without a source. The real problem is quieter. Parsers build a structured profile from job title, employer and dates; a skills-block layout gives them little to work with, so your application can arrive with an empty or partial work-history field, which makes you look under-qualified in a search. Then a human reads it and cannot tell when you did any of it. If your reason for reaching for a functional format is a gap, a downward move or a patchwork of contracts, the combination format handles all three without the cost: skills at the top, complete dated history underneath, and one honest line explaining the break.

Can I use two columns or a sidebar?

You can, but keep everything that must be parsed in the main column: job titles, employer names, dates and achievement bullets. A narrow sidebar holding only contact details, a skills list and languages is lower risk than a full two-column grid, though even that can be read out of sequence. For any upload to a large employer's careers system, a single column is the safer build. Some people keep two versions — a single-column file for portals and a designed version for direct email, recruiter conversations and their own website. If you do that, make sure the content matches; two versions that disagree on dates or titles create a problem later.

Do I need to change format for every application?

No. Pick one format and keep it. What should change between applications is the content: the summary at the top, the order and wording of the skills, and which bullets you keep for older roles. Mirror the advert's vocabulary where it is true of you, and cut bullets that have nothing to do with the job in front of you. Save each tailored version with the role in the file name so you can see what you sent. Rebuilding the layout every time wastes hours and introduces errors in dates and spacing — the two things a careful reader will notice first.