| jpno | person number |
| jficode | income receipt code |
| jfrall | received payment each month |
| jfr01 | payment received in september 1999 |
| jfr02 | payment received in october 1999 |
| jfr03 | payment received in november 1999 |
| jfr04 | payment received in december 1999 |
| jfr05 | payment received in january 2000 |
| jfr06 | payment received in february 2000 |
| jfr07 | payment received in march 2000 |
| jfr08 | payment received in april 2000 |
| jfr09 | payment received in may 2000 |
| jfr10 | payment received in june 2000 |
| jfr11 | payment received in july 2000 |
| jfr12 | payment received in august 2000 |
| jfr13 | payment received in september 2000 |
| jfr14 | payment received in october 2000 |
| jfr15 | payment received in november 2000 |
| jfr16 | payment received in december 2000 |
| jfr17 | payment received in january 2001 |
| jfr18 | payment received in february 2001 |
| jfr19 | payment received in march 2001 |
| jfr20 | payment received in april 2001 |
| jfrnow | is still receiving payment |
| jfrval | last amount received |
| jfrw | weeks covered by last amount received |
| jfrjt | last payment: sole or joint recipient |
| jfrjtpn | pno of joint recipient |
| jhid | household identification number |
| jfiseq | income receipt sequence number |
| jfim09l | estimated income in september 1999 |
| jfim10l | estimated income in october 1999 |
| jfim11l | estimated income in november 1999 |
| jfim12l | estimated income in december 1999 |
| jfim01t | estimated income in january 2000 |
| jfim02t | estimated income in february 2000 |
| jfim03t | estimated income in march 2000 |
| jfim04t | estimated income in april 2000 |
| jfim05t | estimated income in may 2000 |
| jfim06t | estimated income in june 2000 |
| jfim07t | estimated income in july 2000 |
| jfim08t | estimated income in august 2000 |
| jfim09t | estimated income in september 2000 |
| jfim10t | estimated income in october 2000 |
| jfim11t | estimated income in november 2000 |
| jfim12t | estimated income in december 2000 |
| jfim01n | estimated income in january 2001 |
| jfim02n | estimated income in february 2001 |
| jfim03n | estimated income in march 2001 |
| jfim04n | estimated income in april 2001 |
| jfrjtvf | joint receipt verification flag |
| jfrvali | imputation flag – jfrval (base) |
| pid | cross-wave person identifier |
| pidp | Cross-wave person identifier (UKHLS) |