How we research

Money and tax pages can cost readers real money when they're wrong, so this page says plainly how the guides on Veran Finance are made. It's short on purpose.

Who does the work

One person runs the site: Manel Vadillo. The guides and calculators are researched and drafted with AI tools (Anthropic's Claude), working from the official sources each guide cites. Every figure is checked against that source, and the numbers in worked examples and calculators come from the site's own code, which is tested against cases worked out by hand. No CPA, tax attorney or financial advisor reviews the guides, and none of them say otherwise. You can read more on the About page.

How topics are chosen

I write about questions a US freelancer or self-employed person actually runs into: how much to set aside for taxes, which retirement plan fits, what a deduction is really worth. Topics come from what people search for and from what I run into as a freelance web developer. I prefer a narrow question with a clear answer over a broad topic that has been covered everywhere.

Where the figures come from

Every figure, limit, rate and deadline comes from an official source, not from another finance site:

• The IRS: publications, forms and their instructions, revenue procedures, notices and announcements.
• The Social Security Administration, for the Social Security wage base.
• Healthcare.gov and HHS, for Marketplace rules and the federal poverty guidelines.
• Treasury regulations and the Federal Register, where a rule is defined there.

Each guide lists its sources at the bottom, and I link to the specific page or document so you can check anything yourself. If an official source doesn't say something, the guide doesn't claim it.

How the numbers in examples are worked out

The yearly figures live in one place in the site's code, with the source each one was read from, and the calculators and worked examples use that same code instead of figures typed by hand. Examples are illustrations for a stated situation (single filer, no state tax, and so on) and say so. They aren't predictions for your return.

How guides are reviewed and updated

Every guide shows when it was published and, if it has changed since, when it was last updated. An updated date means the content changed on that day.

Every time the IRS publishes new yearly limits, normally in October or November, I go through all the guides that carry annual figures, such as retirement contribution limits, brackets, mileage rates and thresholds, and update them. I also go back to a guide when:

• a law or a form changes;
• a reader points out something that looks wrong.

Outside those moments I don't re-check every page on a fixed calendar, so for anything time-sensitive, look at the tax year shown on the guide and confirm the figure at the source linked there before you act.

How errors get corrected

If you find a mistake, email contact@veranfinance.com or use the contact page. I check it against the official source, fix the guide and change its updated date. If a correction changes a number, the guide says what changed.

What this site is not

It covers US federal rules. State taxes, other countries and individual circumstances are out of scope. The guides are educational, not personal tax, legal or investment advice; see the Financial Disclaimer. How the site is paid for, and why that doesn't affect what gets written, is on the About pageand in the Affiliate Disclosure.