Filing your annual tax return — Patter

The case

The annual tax return is one of those tasks that sits on the edge of your awareness for months. You know it’s coming. You half-intend to get organised. Then the deadline arrives and you’re in a panic, digging through bags and inboxes for documents you half-remember receiving. The task itself isn’t that hard. The state you do it in usually is.

What makes it worse is that it only happens once a year — not often enough to build a reliable memory of what’s required, but consequential enough that doing it badly has real costs. Most people carry a vague anxiety about whether they’ve claimed everything they should, or whether they’ve claimed something they shouldn’t. That anxiety is mostly a product of not having a process.

Running this routine in Patter changes the experience in a specific way. You’re not trying to hold the whole structure in your head while also reading documents and filling in forms. Each step shows up when you need it, stays in front of you until it’s done, and then moves on. The shoebox becomes a pile. The pile becomes a return. The return gets filed.

The last step is the most important one to do while you still have the energy. Two minutes spent writing down what made this year harder than it needed to be is worth more than an hour of reorganising in January. The routine you run next year will be faster and calmer than the one you just ran — if you do that one thing before you close the folder.

Filing Your Annual Tax Return

Get a box, folder, or bag and put it in front of you. This is your filing pile for the session. Everything goes here before it goes anywhere else. The physical act of having a container matters — it gives the task a boundary.
Find last year's return and put it in the pile. If you can't find it, note that down — you may need to request a copy. It tells you what you filed, what you earned, and what to compare against this year.
Collect every income document you've received this year. Employer summaries, freelance or contract payments, bank interest, dividends, rental income, government payments, pension income, anything. If money came in, there's probably a document for it. Put them all in the pile.
Check whether any income documents are still missing. Look at last year's return and at what you know you earned this year. If something hasn't arrived yet, note it and set a reminder. Don't move past this step until your income picture is complete — a return filed with missing income is a problem.
Collect your deduction and expense documents. Receipts, invoices, charitable donations, medical expenses, work-related costs, mortgage or rent payments, anything you might claim. If it's in a shoebox, go through the shoebox now. This is the step people rush. Don't.
Collect any other relevant documents. Notices or adjustments from previous years, records of estimated tax payments, documents related to property sales, investments, or significant life changes in the past year.
Decide: are you filing yourself or using an accountant? Neither is wrong — it depends on your situation. If your return is straightforward, software is fine. If you have multiple income sources, investments, self-employment, or anything unusual, an accountant is probably worth it. If you're using an accountant, skip to @11.
Open your tax filing software or form and start a new return. Don't try to hold the structure in your head. Let the software or form lead you through the sections in order.
Work through each section using your documents. Income first, then deductions, then credits. Don't skip a section because you assume it doesn't apply — read it and confirm. The ones that look irrelevant are often the ones worth checking.
Flag anything you're unsure about before submitting. Don't guess on a claim you're not certain of. Note it, look it up, or call the tax authority's helpline. An error costs more than a missed deduction.
Prepare a clear summary for your accountant. What you earned, what changed this year compared to last, anything unusual or new. They can only work with what you give them. Bring everything from the pile, organised by category.
Review the completed return before filing. Check your personal details, the bank account for any refund, and that the figures match your source documents. This takes ten minutes and catches most errors.
File. Note the confirmation number or reference somewhere you'll find it — in this app, in your email, written on the return itself.
Note the amount owed or refund expected. If you're owed a refund, note when to expect it. If you owe, check the payment deadline — it often differs from the filing deadline.
Pay any amount owed. Do this now if you can. If you can't pay in full, check whether a payment plan is available. Don't ignore a balance — the penalties for ignoring it are worse than the bill.
Save a copy of the filed return. Digital is fine. Same folder, same place, every year.
Write down one thing to do differently next year. A document that was hard to find, an expense you forgot to track, a question you had to look up twice. Stick it somewhere you'll see it in January. Next year's return starts now.

Make it yours

Step #4 is the one that holds everything. It's tempting to push forward with what you have and fill in gaps later — but a return filed with missing income creates more work than waiting a week for the document to arrive. The routine pauses here on purpose.

The accountant fork at #7 is worth thinking about each year, not just once. A change in circumstances — new freelance income, a property sale, a redundancy payment, a bereavement — can make a previously straightforward return complicated enough to warrant help. The cost of getting it wrong usually exceeds the cost of the accountant.

Steps #9 and #10 are where doing it yourself either works or doesn't. Tax software is good at leading you through the sections, but it can't tell you whether a claim is legitimate — only that you've made one. If you hit something you're not sure about, stop and check rather than assuming.

Step #17 is the one that compounds. It takes two minutes and most people skip it. The returns that go smoothly are the ones where someone spent two minutes at the end of last year's return writing "track mileage from March" or "ask about the home office claim." Do it while the memory is fresh.