I-Bond Rates in Google Sheets & Excel

What this pulls

Track Series I bond rates from a cell. Returns the current composite, fixed and inflation rates — Sheets or Excel.

It's one of 250+ live sources you reach with a single =VERVE() function — served from APIVerve's production data engine, billed at 1 credit per resolved cell, and refreshed on whatever cadence you set. No API keys to wrangle, no scripts, no exports.

See it in a cell

A real example — the input you type, and the values you can pull from it. Click any cell to see the formula behind it.

savingsbonds.xlsxsample data

A2fx=VERVE("savingsbonds", "field", "iBonds.currentRate")

I Bonds › Current Rate

I Bonds › Fixed Rate

I Bonds › Inflation Rate

I Bonds › Purchase Limit

Ee Bonds › Current Rate

5.27

1.3

1.97

10000

2.7

click any cell to see its formula1 credit / cell

Ways to use it

Live financial model

Drop =VERVE("savingsbonds", "field", "iBonds.currentRate") into a cell and your model reads the latest number every refresh — no more pasting figures from a browser tab into a stale sheet.

Track a whole watchlist

Fill a column beside your list of tickers or currencies and every row updates together, so a hundred-row watchlist stays current on its own.

Dashboards that don't rot

Point a chart at the cell =VERVE("savingsbonds", "field", "iBonds.currentRate") feeds and the chart re-draws as the data moves — a finance dashboard that's live instead of a Monday-morning snapshot.

Use it in your sheet

The same function works in both apps — install once, sign in with your key, and type it into any cell.

Google SheetsAdd-on

Install from the Workspace Marketplace, then drop the formula into a cell. Autocomplete suggests the source and its fields.

=VERVE("savingsbonds", "field", "iBonds.currentRate")

Microsoft ExcelAdd-in

Same source, same arguments, same key — in Excel on desktop, the web, or mobile. Excel namespaces it as VERVE.CALL. Drag to fill a whole column.

=VERVE.CALL("savingsbonds", "field", "iBonds.currentRate")

Optional inputs

Tune the result by adding name=value before the field argument — in any order. Leave one out and its default applies.

periodPremium
Specific issue period to lookup (YYYY-MM format, e.g., 2024-11). Omit for current rates.
=VERVE("savingsbonds", "period", "2024-11")

Fields you can pull

Add a field name as the last argument to land just that value in the cell.

Next Rate Change
=VERVE("savingsbonds", "field", "nextRateChange")
Last Updated
=VERVE("savingsbonds", "field", "lastUpdated")

Premium marks data included on paid plans. On the Free plan a marked field is withheld and a marked input is ignored — either way the cell reads #PREMIUM(name) instead of a value, so a gated answer can never be mistaken for a real one. Everything unmarked works on every plan. Compare plans

I-Bond Rates, answered

Everything you need to wire it into a sheet.

How do I pull I-Bond Rates into Google Sheets?

Install the VerveSheets add-on, sign in once with your key, and type =VERVE("savingsbonds", "field", "nextRateChange") into any cell. The "field" argument names the value you want back, so the cell resolves to a single number or string you can chart, sort, or feed into another formula.

What data can I pull from I-Bond Rates?

I-Bond Rates returns nextRateChange and lastUpdated — name any one of them as the "field" argument and that value lands in the cell. Leave the field out and the whole record spills into a two-column table instead.

Can I narrow what I-Bond Rates returns?

Yes — I-Bond Rates takes "period" as optional inputs. They go in as "name", value pairs after the required ones, in any order, so =VERVE("savingsbonds", "period", "2024-11") shapes the result without changing anything else.

Can I fill a whole column of I-Bond Rates at once?

Yes. Reference a range instead of a single cell and one call returns a value for every row, or drag =VERVE("savingsbonds") down like any spreadsheet function.

How many credits does each I-Bond Rates cell cost?

Each resolved cell costs 1 credit. A cell only re-bills when it actually refreshes, so a sheet you aren't touching doesn't keep charging.

Does I-Bond Rates work in Excel as well as Google Sheets?

Yes — same arguments, same key, same fields. Excel namespaces custom functions, so the call is =VERVE.CALL() there and =VERVE() in Google Sheets; nothing else about it changes.

How current is I-Bond Rates?

It draws on since 1998, served live from APIVerve's production data engine, and cells recalculate on the cadence you choose — every open, hourly, or every 30 minutes.

I-Bond Rates

Live financial model

Track a whole watchlist

Dashboards that don't rot

I-Bond Rates, answered

Put I-Bond Rates in your next spreadsheet. Add the extension, paste the formula, and the cell keeps itself current.

Scaling up?