The last few months of the year are the best time to look at your Bitcoin activity with taxes in mind. Once December 31 passes, most of the year’s results are locked in, and what’s left is paperwork. A short review in October, November, or early December can help you avoid surprises in April and give you time to make choices while they still count. Here is a plain-language checklist for individual U.S. taxpayers.

1. Pull together this year’s transactions

Start by listing everything you did with Bitcoin this year: purchases, sales, trades for other crypto, purchases of goods or services with Bitcoin, coins received as pay or rewards, and transfers between your own wallets. Download histories from every exchange and wallet you used, not just your main one.

Doing this now, instead of in March, means you still have time to track down a missing statement or a wallet you forgot about. It also makes every other step on this list easier.

2. Estimate your gains and losses so far

Because the IRS treats Bitcoin as property, selling, trading, or spending it can create a capital gain or loss. Using your records, add up roughly where you stand for the year, and note whether each result is short-term (held one year or less) or long-term (held more than one year). Long-term gains are generally taxed at lower rates than short-term gains.

Knowing your rough number now lets you make decisions on purpose. For example, if you are close to the one-year mark on a lot you plan to sell, waiting a few weeks may change how the gain is taxed.

3. Look at unrealized losses

If some of your Bitcoin is worth less than you paid for it, selling before year-end can turn that paper loss into a realized capital loss. Capital losses generally offset capital gains first, and a limited amount of excess loss can offset other income each year, with the rest carried forward.

Many people also ask about wash-sale rules. Historically, the securities wash-sale rule has not been applied to Bitcoin held directly, but rules can change and proposals come up from time to time, so confirm the current treatment before relying on it. And keep in mind that Bitcoin ETF shares are securities, which can be treated differently from coins you hold yourself.

4. Confirm your cost basis and which coins you are selling

If you bought Bitcoin at different times and prices, the cost basis of the specific units you sell drives your gain or loss. Make sure you know which method you are using, whether that is first-in, first-out or specific identification, and that your records and any exchange settings agree.

If you move coins between platforms, check that the purchase dates and prices traveled with them. Missing basis is one of the most common problems people find at tax time, and it is much easier to fix now than after forms start arriving.

5. Plan any gifts or donations before the deadline

Giving Bitcoin to family members or donating it to charity both have their own tax rules, and in most cases the date the transfer is completed is what counts. If you plan to make a year-end gift or donation, start early. Charities may need time to set up to receive crypto, and larger donations of property can require a qualified appraisal and extra forms.

For gifts, keep a record of the date, the value on that date, and your original cost basis, since the recipient generally needs that information later. Large gifts can also carry a gift tax return filing requirement even when no tax is owed.

6. Check whether you need an estimated tax payment

Taxes on a big gain, or on income like mining or staking rewards, are not automatically withheld the way they are from a paycheck. If you had a large taxable event this year, you may need to make an estimated tax payment, or increase withholding from wages, to reduce the risk of an underpayment penalty. The final quarterly estimate for the year is generally due in mid-January, but reviewing it in the fall gives you room to plan.

7. Know which tax forms to expect

Crypto brokers are phasing in reporting on the new Form 1099-DA, and some platforms may also send other forms depending on your activity. Make a list of the platforms you used so you know what to watch for in early next year. When forms arrive, compare them against your own records. A broker may not have your basis for coins you moved in from another wallet, and you will want your own documentation ready.

Also remember the digital asset question on Form 1040. If you sold, traded, spent, or received Bitcoin during the year, you will likely need to answer “yes,” so your records should support whatever you report.

A simple way to finish the year

You don’t need to be a tax expert to work through this list. Gather your records, get a rough picture of gains and losses, make any intentional moves before December 31, and set your records aside in one place. If your situation involves large amounts, business activity, or several wallets and platforms, a conversation with a CPA or tax professional before year-end can be well worth the time.

This article is general information only and is not tax, legal, or investment advice. Tax rules can change and depend on your specific facts. Consult a qualified tax professional about your situation.