Siena housing and COLA at a glance

Siena, Italy (DoD locality IT064).

E-5 rent ceiling
$1,493
with dependents
E-7 rent ceiling
$1,700
with dependents
O-3 rent ceiling
$1,700
with dependents
Utility allowance
$1,664
per month, with deps
COLA index
126
E-5, 2 deps: $763/mo

An E-5 with dependents can rent up to $1,493 a month (1,260 EUR) and receives $1,664 for utilities and maintenance, $3,156 a month in total OHA at the ceiling. With two dependents and 6 years of service, COLA adds about $763 a month. Both are tax-free.

OHA rent ceilings for every grade

OHA reimburses your actual rent up to the ceiling for your grade, so renting below it means a smaller payment, not money kept. Without dependents, the ceiling is 90% of the with-dependents figure.

GradeWith depsWithout depsCeiling (EUR)
E-1$1,161$1,045980 EUR
E-2$1,161$1,045980 EUR
E-3$1,161$1,045980 EUR
E-4$1,161$1,045980 EUR
E-5$1,493$1,3441,260 EUR
E-6$1,700$1,5301,435 EUR
E-7$1,700$1,5301,435 EUR
E-8$1,700$1,5301,435 EUR
E-9$2,073$1,8661,750 EUR
W-1$1,493$1,3441,260 EUR
W-2$1,700$1,5301,435 EUR
W-3$2,073$1,8661,750 EUR
W-4$2,073$1,8661,750 EUR
W-5$2,073$1,8661,750 EUR
O-1E$1,700$1,5301,435 EUR
O-2E$1,700$1,5301,435 EUR
O-3E$2,073$1,8661,750 EUR
O-1$1,493$1,3441,260 EUR
O-2$1,493$1,3441,260 EUR
O-3$1,700$1,5301,435 EUR
O-4$2,073$1,8661,750 EUR
O-5$2,073$1,8661,750 EUR
O-6$2,073$1,8661,750 EUR

Utilities and move-in

Rent ceilings effective 16 July 2026. Converted at DTMO's pay-system rate of 1 EUR = $1.184834 (October 1, 2026). DTMO revises it on the 1st and 16th of each month, so the dollar amount moves even when the ceiling does not.

COLA in Siena

The COLA index here is 126 (effective October 1, 2026), meaning goods and services cost about 26% more than in the U.S. COLA is paid on top of base pay and OHA. Estimated monthly COLA by grade and number of dependents:

Grade (YOS)No deps1 dep2 deps3 deps4 deps
E-3 (2 yrs)$686$725$763$801$839
E-4 (4 yrs)$686$725$763$801$839
E-5 (6 yrs)$686$725$763$801$839
E-6 (10 yrs)$686$725$763$801$839
E-7 (14 yrs)$686$725$763$801$839
E-8 (18 yrs)$735$776$817$858$899
E-9 (22 yrs)$829$875$921$967$1,013
W-2 (8 yrs)$686$725$763$801$839
O-2 (3 yrs)$712$751$791$830$870
O-3 (6 yrs)$782$825$869$912$956
O-4 (12 yrs)$895$945$995$1,044$1,094
O-5 (18 yrs)$1,000$1,056$1,112$1,167$1,223
O-6 (22 yrs)$1,096$1,157$1,218$1,279$1,339

Estimates use 2026 base pay at the years of service shown and DTMO's spendable-income table (CY2026 tables (effective Feb 1, 2026)). COLA = spendable income × (index − 100) ÷ 100 ÷ 12. Members without dependents living in government quarters receive a reduced rate. Run your exact grade, years of service and dependents in the OCONUS COLA calculator.

How Siena compares

The COLA index of 126 is the 17th-highest of 30 Italy localities DTMO prices for OHA, and in the bottom 48% of the 624 locations worldwide that pay COLA.

Its E-5 rent ceiling ranks 19th of 30 in Italy.

Where the ceiling steps up with rank (with dependents): enlisted $1,161 for E-1 to E-4, $1,493 at E-5 (+$332), $1,700 from E-6 to E-8 (+$207), and $2,073 at E-9 (+$373); officers $1,493 for O-1 to O-2, $1,700 at O-3 (+$207), and $2,073 from O-4 to O-6 (+$373). A promotion that lands before you sign a lease raises what you can rent.

At the ceiling, an E-5 with two dependents draws about $3,919 a month here in OHA and COLA combined, tax-free. The same member receives $2,061 in BAH at the median U.S. housing area. Treat that as a rough guide: OHA pays your actual rent rather than a flat amount, and COLA exists because everyday prices here run higher.

How these rates have moved

The COLA index is 126 (October 1, 2026), the same as on May 1, 2026, though it ranged from 124 to 126 in the months between.

EffectiveCOLA indexE-5, 2 deps*
October 1, 2026126$763
July 16, 2026124$704
May 1, 2026126$763

*Monthly COLA at 2026 base pay (6 years of service), so the column isolates the effect of the index.

Exchange rate: DTMO's pay-system rate was 1 EUR = $1.16117 on July 16, 2026 and $1.184834 on October 1, 2026 (+2.0%). The E-5 ceiling of 1,260 EUR is worth $1,493 today against $1,463 then, so the dollar amount on your LES rose by $30 a month without the ceiling itself changing.

From DTMO's published COLA indices and OHA exchange rates as recorded by this site each pay period.

Other Italy localities

E-5 with dependents. Your OHA follows the locality of your duty station, so these apply only if you are assigned there.

LocalityOHA rent ceilingCOLA index
Aviano$1,448128
Bologna$2,501126
Bolzano$1,859144
Brindisi$1,422126
Cameri AB$1,540148
Florence$2,097144
Foggia$1,457144
Gaeta$1,646144
Ghedi$1,185126
Istrana AB$1,600122
La Maddalena$1,303144
La Spezia$1,617134
Latina$1,777126
Livorno$1,646128
Milan$2,172148
Naples$1,777132
Other (Italy)$1,457144
Parma$918126
Pisa$1,519128
Poggio Renatico$2,040126
Rome$3,936144
Sanremo$1,617122
Sigonella$1,579126
Solbiate$2,172148
Taranto$1,493126

Plus 4 more in the Italy list.

Using these numbers

Sources: DTMO OHA rate tables and OCONUS COLA indices, refreshed each pay period. Estimates for planning; your finance office's figure is the one that pays.