They use double-entry accounting to report the monetary value and sources of output produced in the country and the distribution of incomes that production generates.
The U.S. report (updated quarterly) is available in several forms, including interactive, from links on the Bureau of Economic Analysis (BEA) NIPA ([1]) page.
The level of detail (granularity) accounted for internally, and reported publicly, varies widely across countries.
Since wages and salaries affect more individuals and families directly than the other sources of income, it has by far the largest value.
inventory value adjustment (IVA) and capital consumption adjustment (CCA) are corrections for changes in the value of the proprietor's inventory (goods that may be sold within one year) and capital (goods like machines and buildings that are not expected to be sold within one year) under rules set by the U.S. Internal Revenue Service (IRS).
While the report includes the net value of interest payments and receipts, both the taxes paid and subsidies from the government are shown.
Macroeconomics defines GDP, from the production perspective, as the sum of personal consumption, investment, net exports, and government expenditures; GDP = C + I + (X − M) + G. The production side report also begins with individuals and families, in this case, their personal consumption expenditures on goods and services, C in the definition.
Services include everything else, everything we buy that has little or no physical presence, like banking, health care, insurance, movie tickets, and so on.
Gross private domestic investment includes expenditures on goods that are expected to be used for an extended period of time, I in the definition.
Nonresidential investment includes buildings, machinery, and equipment used for commercial or industrial purposes (small business, agriculture, manufacturing, service, etc.).
Like an individual or family, the government consumes food, clothing, furniture, and other goods and services in its administrative, military, correctional, and other programs.
Transfer payments, like subsidies to the unemployed or the retired, are not included in this item since they are simply a movement of money from the government to citizens, rather than a purchase of goods or services.
The BEA offers the NIPA tables interactively and as txt, zipped wk1, exe, csv, and pdf files.