Resources

Where the numbers come from.

Every figure in a Money with Mara lesson traces back to a source you can check yourself. Share the charts, then check the sources. Don't trust, verify.

Data explainers · free to share

See the numbers

Our charts, built from official data. Click any chart for the full-size version. Share them with credit to Money with Mara.

Money with Mara data explainer: M2 money supply, 2000 to today. From $4.9T in 2000 to a $23.2T all-time high in July 2026, including the only sustained decline in the series. — M2 money supply, 2000 to todayFrom $4.9T in 2000 to a $23.2T all-time high in July 2026, including the only sustained decline in the series.

Money with Mara data explainer: M2 money supply since 1980. Four decades of new dollars, in December values. — M2 money supply since 1980Four decades of new dollars, in December values.

Money with Mara data explainer: M2 money supply, full history. Every month since the series began in January 1959. — M2 money supply, full historyEvery month since the series began in January 1959.

Money with Mara data explainer: Two ways to create money. U.S. M2 has no scheduled limit. Bitcoin's supply is capped at 21 million by code. — Two ways to create moneyU.S. M2 has no scheduled limit. Bitcoin's supply is capped at 21 million by code.

Data: Board of Governors of the Federal Reserve System, M2 money stock (M2SL), via FRED, Jan. 1959 to Jul. 2026. Bitcoin issuance follows the protocol's fixed halving schedule; circulating supply as of September 2026.

Data sources

Official numbers

DebtU.S. Treasury, Debt to the PennyThe official total federal debt, updated every business day.
BudgetCBO, Monthly Budget ReviewHow big the deficit is so far this fiscal year.
ProjectionsCBO, The Budget and Economic Outlook: 2026 to 2036Where debt and interest costs are headed over the next decade.
Money supplyFRED, M2 money stock (M2SL)How many easy-to-reach dollars exist, monthly since 1959.
PricesBLS, Consumer Price IndexThe government's main measure of inflation.

Tools

See it for yourself

LiveU.S. Debt ClockRunning estimates of debt, deficits and more. An independent site, not affiliated with Money with Mara.
ChartsFRED economic dataFree charts and downloads from the Federal Reserve Bank of St. Louis.
OursMoney with Mara debt clockOur live estimate on the homepage, with the method shown.
OursMoney with Mara dictionaryEvery word from the lessons, in plain English. Mixing up debt and deficit? Compare them.
OursThe $40 Trillion QuestionWhere these numbers come together: deficit, debt, who we owe and the interest bill.

Follow the moneyM2 charts Bitcoin price chart Reserve Watch Watch: visualizing the debt

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