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Accounting firm marketing: tax season posts and LinkedIn content

Your clients' year already has a rhythm, set by tax deadlines. Build your marketing on the same calendar and every post arrives exactly when someone needs it.

GradientlyVerified Gradiently account·October 1, 2026·5 min read
Cover: Sand Hearth · GR·1C0K·KG

The short version

  • Effective accounting firm marketing follows the tax calendar, with reminders, tips and offers timed to the deadlines clients are already worried about.
  • Deadline reminder posts work best as a fixed layout where only the date and the number of days change.
  • Tip carousels on LinkedIn and Instagram are saved and shared because they solve one specific problem in a few pages.
  • Client stories need written permission and should describe the work, not promise outcomes to others.
  • A spreadsheet of deadlines can become a whole season of matching reminder posts in one sitting.
On this page
A seasonal marketing calendar for accountantsDeadline reminder postsTip carousels clients saveClient stories, with permissionLinkedIn content for accounting firms

The most effective accounting firm marketing follows the calendar your clients already live by: tax deadlines, year ends and payment dates. Post a reminder before each one, a tip carousel that makes it less painful, and a calm note on how you can help, all in one consistent look. LinkedIn carries most of it for business clients, with Instagram, Facebook and Google Business for local sole traders. The design job is mostly repetition: a few fixed layouts you fill in, all season.

A seasonal marketing calendar for accountants

Plan the year around deadlines first and fill the gaps with everything else. The dates below are the familiar fixed points in the UK and US; always confirm the current year's dates with HMRC or the IRS before posting, since weekends and rule changes can move them.

January31 Jan: Self Assessment online return and payment

US

15 Jan: Q4 estimated tax

Post idea

Countdown, "documents we need" checklist
April5 Apr: tax year ends

US

15 Apr: individual returns, Q1 estimated tax

Post idea

Year end checklist, extension explainer
JuneQuieter month

US

15 Jun: Q2 estimated tax

Post idea

Mid year review offer, team intro
July31 Jul: second payment on account

US

Quieter month

Post idea

Cash flow tips
September

UK

Plan for October

US

15 Sep: Q3 estimated tax

Post idea

"Start early" campaign
October5 Oct: register for Self Assessment; 31 Oct: paper returns

US

15 Oct: extended returns

Post idea

Registration reminder, onboarding offer
WhenUKUSPost idea
January31 Jan: Self Assessment online return and payment15 Jan: Q4 estimated taxCountdown, "documents we need" checklist
April5 Apr: tax year ends15 Apr: individual returns, Q1 estimated taxYear end checklist, extension explainer
JuneQuieter month15 Jun: Q2 estimated taxMid year review offer, team intro
July31 Jul: second payment on accountQuieter monthCash flow tips
SeptemberPlan for October15 Sep: Q3 estimated tax"Start early" campaign
October5 Oct: register for Self Assessment; 31 Oct: paper returns15 Oct: extended returnsRegistration reminder, onboarding offer
A deadline backbone for the year. Add your own clients' year ends and VAT or sales tax dates.

Put the dates into a social media content calendar at the start of the year. Once they are scheduled, the quiet months are for tips, team posts and client stories.

Deadline reminder posts

Reminders are the posts people act on. Make them unmistakable: the deadline in large type, how many days are left, and what to do. Keep the layout identical across the season, so followers recognise a reminder in the feed before they read it. On the story version, keep the date inside the central safe area so the app's buttons and captions never cover it; social media safe zones shows where that is.

Self Assessment
30 days to 31 January
Send us your documents by 10 January
Gradiently · @gradiently

The feed version: deadline, days left and your own earlier cut off.

Self Assessment · 31 January
7 days left
Still need help? Reply or call today
Gradiently · @gradiently

The story version in the final week. Same layout, more urgency in the words, not the colours.

Give your own cut off

The official deadline is the client's deadline, not yours. Put your own earlier date for receiving documents on every reminder, and you will have a calmer January.

A season of reminders is a perfect job for bulk creation. With Gradiently Pro you can put every deadline, date and message in a spreadsheet, connect the columns to a reminder design, and create a matching post for each row at once. One Undo removes the batch if you change your mind. Bulk create from a spreadsheet walks through it.

Tip carousels clients save

Carousels suit accounting because the useful content is often a short list. Choose one problem per carousel, name it in the client's words on the cover, and give one point per page.

  1. 1

    A cover with a real question

    "What can I claim working from home?" beats "Tax tips".

  2. 2

    Three to six points

    One per page, each a sentence or two, in plain language.

  3. 3

    A caveat page

    "Rules depend on your situation" keeps it general and honest.

  4. 4

    A next step

    Who to contact and how, on the last page.

Checklist
Before you send us your return
1.P60s · Bank interest · Rental income ·
2.Receipts
Gradiently · @gradiently

A checklist cover. Clients save these and come back to them in January.

Tips carousel has more on page count and cover hooks, and countdown post design has layouts for the final week.

Client stories, with permission

Small business owners trust other small business owners. A short story about a real client, what they needed and what you did, is persuasive in a way no tip can be. Get written permission, let the client approve the wording, and describe the work rather than promising results to anyone else. Professional bodies for accountants generally expect marketing to be honest and not misleading, so keep claims factual.

Client story
We finally know our numbers each month.
Gradiently · @gradiently

An example layout. Use your client's own approved words, with their name and town if they agree.

Longer stories make good LinkedIn articles and website pages; case study design covers the layout.

LinkedIn content for accounting firms

Business clients, referrers and future hires read LinkedIn. Portrait posts take up the most room in the feed, square suits simple announcements and link images go with articles. Give each partner a matching profile banner so the firm reads as one.

Portrait post 1080×1350

1080 × 1350

Square post 1200×1200

1200 × 1200

Link image 1200×627

1200 × 627

Profile banner 1584×396

1584 × 396

The four LinkedIn shapes an accounting firm uses most.

Posts from a partner's own profile usually feel more personal than the company page, so share the firm's graphics from both. A partner explaining a change in their own words, with the firm's carousel attached, reads as advice from a person rather than an announcement from a logo. Agree a simple rhythm, such as one firm post and one partner post a week, and keep to it outside tax season too.

Most accounting brands are a safe blue, which makes them hard to tell apart in a feed full of finance posts. Keep a trustworthy dark base and add one warmer colour for reminders and calls to action.

A palette that still feels financial. Amber is reserved for deadlines, so it always means "act".

LinkedIn post design and B2B marketing design go further. If writing is the bottleneck, the Designer can draft a reminder or a tip carousel in your firm's voice from the brand kit and lay it out for you to check.

Ask the Designer

Describe what you need and Gradiently’s AI makes it, on your Mark.

Try the Designer

Questions people ask

What should accountants post on social media?

Deadline reminders, tip carousels on specific problems, client stories shared with permission, team news and clear posts about the services you offer.

When should accountants start tax season marketing?

Start reminders two to three months before a major deadline, then increase frequency in the final month and final week.

Is LinkedIn good for accounting firms?

Yes, especially for reaching business clients and referrers. Portrait posts take up more of the feed, and short carousels suit step by step tips.

How do I make a tax deadline reminder post?

Use a fixed layout with the deadline date large, the days remaining, and your own earlier cut off for documents, then change only the numbers each time.

Can accountants share client testimonials?

Yes, with written permission and wording the client has approved. Keep claims factual and avoid implying the same result for everyone.

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Written by GradientlyVerified Gradiently account

The team behind Gradiently, a design tool built around Marks: living gradients that make everything you design look like yours.

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On this page

A seasonal marketing calendar for accountantsDeadline reminder postsTip carousels clients saveClient stories, with permissionLinkedIn content for accounting firms

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