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BA II Plus annuity due: BGN mode keystrokes and the trap

Leases, rent, insurance premiums and retirement withdrawals that begin today.

The keys

2NDBGN2NDSETToggles to BGN mode. A small BGN appears on screen.
2NDQUITBack to the standard display, still in BGN mode.
… solve as usual …Each payment now arrives one period earlier.
2NDBGN2NDSETSwitch back to END when done.

Worked example

The same five payments of 1,000 at 8%, but paid at the start of each year.

2NDBGN2NDSET2NDQUITBGN on.
5N8I/Y1000PMT0FVSame inputs.
CPTPVPV = −4,312.13.
PV = −4,312.13, which is the ordinary annuity × 1.08

The trap

BGN mode stays on until you switch it off — even after turning the calculator off. Check for the BGN indicator before every TVM problem.

Watch it on the calculator

From our BA II Plus keystrokes video (starts at this step). Open on YouTube.

The terms behind it

  • AnnuityA series of equal cash flows at equal intervals.
  • Present valueWhat a future cash flow is worth today, found by discounting it at a rate that reflects its risk and timing.

More BA II Plus keystrokes

BA II Plus is a trademark of Texas Instruments. Groundlearn is not affiliated with Texas Instruments, CFA Institute or GARP; the name is used only to say which calculator these keystrokes are for. Educational content only. Always check your exam body's current calculator policy.

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