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Step one: sort documents by source
Start by grouping paperwork by where income and expenses come from rather than by form name. Typical groups include employment, self-employment, banking and investments, housing, family and education, and health. Under each group, list the documents you expect to receive, such as wage statements, interest and dividend reports, mortgage interest statements or tuition forms. Add a column for the expected arrival month. Sorting by source helps you notice what is missing, because you can compare this year's list to last year's return and spot an account, employer or payment that should have produced a document but has not yet.
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Step two: add personal details that change
Next, capture facts that shift from year to year and affect the return. These include a move, a new job, marriage or divorce, a new dependent, a purchased or sold home, retirement contributions and any large medical or charitable expenses. Record each as a short question with a yes or no answer and a place for notes. This section is often what separates a smooth filing from a rushed one, since life events create documents nobody remembers to request. Keep identification details, such as filing status and bank information for refunds, in one clearly marked place.
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Step three: review, store and follow up
Finish with a checking routine. Mark each item as received, requested or not applicable, and set a date to chase anything outstanding. Store scanned copies in a single folder named by year, with consistent file names such as employer-wages or mortgage-interest. Worked example: a household with one salaried worker and one freelancer lists two wage statements, a bank interest form, freelance payment records, a mortgage statement and childcare receipts. Two weeks before filing, the freelance records are still missing, so the checklist triggers a request. Afterward, archive the folder and note lessons for next year.