COLA Ledger

An independent reference — not affiliated with the Social Security Administration. Every figure traced to the government publication that produced it.

2013 Medicare Part B premium — $104.90

Standard monthly Part B premium, 2013

$104.90

+$5.00 on 2012. The annual deductible was $147, +$7 on the year before.

Standard premium
$104.90per month
Annual deductible
$147
Change on 2012
+$5.005.01%

What it did to a Social Security payment

The Part B premium is withheld from the Social Security payment, so it lands in the same January as the cost-of-living adjustment and the two move against each other. A $2,000 monthly benefit in 2012 became $2,034 gross with the 1.7% adjustment — a rise of +$34. After the premium went from $99.90 to $104.90, the payment rose +$29, an effective 1.53%.

A $2,000 benefit through the 2013 adjustment and premium
20122013
Gross monthly benefit$2,000$2,034
Part B premium$99.90$104.90
Net payment$1,900$1,929

The full ledger for a $2,000 benefit at 2026 rates carries the annual figures and the percentile context.

No income-related table is committed for 2013

The Federal Register notice for 2013 states the tier percentages in prose but publishes no bracket table, and this site does not hand-key a table it could not read from a primary source. The standard premium and deductible above are primary-sourced and complete. The coverage gaps are listed in full.

Related

Sources and freshness

Every year page draws on that year’s own Federal Register notice, retrieved from federalregister.gov.

Figures effective 1 January 2013. Page figures last verified against the sources above on 10 August 2026. Corrections: the correction log · support@inventum.com.au